[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen as a kernel module
> I would worry about MPI-style jobs, > where you need both low latency and high bandwidth networking, and where > you are likely to fully utilize the TLBs as well. I cannot see how > performance does not get hurt in this situation, when Xen needs to flush > the TLB for every interrupt, or alternatively needs to bundle > interrupts, thus increasing latency. This kind of workload needs measuring to find out just how bad things are -- it's interesting if only because it will certainly represent a worst case scenario for us. Ultimately this should be fixed with smarter NICs. I am optimistic suitable support may end up in high-end NICs: manufacturers are always looking at how to differentiate their product, and we have a few contacts we would like to follow up when we have more time. :-) -- Keir ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |